When I was researching our recent trip to the UK in March/April I wanted to find a company that did airport transfers that I could rely on. We were a family of 2 parents, 2 kids and a grandma and I needed to know someone would definitely be there to pick us up. I also had wanted to book a transfer from the flat we were renting in Notting Hill to Kings Cross Station on the day we were catching the train to Scotland.
I felt in "searching" the forums there was many mixed reviews of companies so I wanted to come back now that my trip is over and review Exclusive Airports who are the company I ended up using.
I have to say they were very good. The drivers were where they said they would be at the designated time and I was really pleased with the service. As well as the good service, I felt their pricing was extremely reasonable. The cars were newish and very clean. Exactly what you want from a private car/van transfer.
I hope this can help someone else unsure about who to go with. I highly recommend Exclusive Airports.